Roll slide window screen



June 1, 1937. T. LLOYD ET AL ROLL SLIDE WINDOW SCREEN Filed May 20, 1936 mew day's. 790M476 LLora and Z P4214 IV. 5YL 144N055.

Patented June 1, 1937 UNHTED STATES PATENT OFFICE ROLL SLIDE WINDOW SCREEN Application May 20, 1936, Serial No. 80,830

2 Claims.

The present invention relates a roll slide window screen and resides in providing a spring roller positioned at the top of a window frame between the side frames thereof for receiving, at

5 the ends of the roller, oppositely disposed metallic strips and includes guide members, on the side of the frame, adapted to retain the strips in position with a window screen which is secured to a cross member at the lower free ends of the strips and adapted to slide within the side guides.

An object of this invention is to provide a roll slide screen which can be moved upwardly from the bottom of the window sill to whatever extent the window may be raised and thereby afford a protection for the open area and at the same time permit the usual unobstructed vision through the remaining portion of the window.

With these and other advantages that will become apparent as the description proceeds,

Figure l is a front elevation of the present invention,

Figure 2 is a side elevation partly in section, and

Figure 3 is a section on line IIIIII of Figure 1.

In the drawing, 2 represents a steel spring roller suitably positioned and secured between the side frames of a window casing. Secured at opposite ends of said roller 2 are thin sheet strips or ribbons 3 adapted to be rolled and unrolled around the roller 2. These oppositely disposed strips 3 are guided in their movement by U-shaped guide members 5 secured to the side frames of the window casing. The guides 5 are provided, at their extreme upper portions, with corrugated surfaces 6 and have the outer portions thereof hinged as at l permitting that portion of the guides to be opened for the insertion of the strips 3. After the strips 3 have been inserted into the guides, the hinged portion of the guides is clamped back into place and held by means of the clip fastener S engaging the main portion of the guide 5.

The strips 3 terminate in a lower corrugated cross piece 9 to which is secured, in any desirable mannena steel window screen It).

In operation, the spring roller 2 having been positioned at the upper frame position of the window, the hinged portion of the two guide members 5 are opened to permit insertion of the screen it and the strips 3 after which the same 5 is closed. The screen is then lowered to its desired position, as shown in Figure l, and after the window has been raised, the desired ventilation is accomplished and at the same time, the screen prevents the usual dirt, etc. from entering 1 the room. Due to the fact that the spring roller 2 permits ready adjustment of the screen Ill to any desired vertical position, with the possibility that sudden upward movement of the screen may take place through the failure of the usual 15 pawls to function, retarding rotation of the roller 2, there are provided the corrugated surfaces on the guide members which cooperate with the corrugated portion 9 on the lower ends of the strip members, to form a stop or braking device and prevent the screen l0 from becoming 2 damaged.

While we have shown and described one specific embodiment of our invention, it will be. understood that we do not wish to be limited exactly thereto, since various modifications may 25 be made without departing from the scope of our invention, as defined by the following claims.

We claim:

1. A roll slide window screen comprising a spring roller, flexible metallic strips secured at the ends of said roller, means for guiding said strips, 21. ventilating screen secured to the free ends of said strips and means adapted to limit the upward movement of said screen member.

2. A roll slide window screen comprising a spring roller, flexible metallic strips positioned at the ends of said roller, guides provided with corrugated surfaces, a corrugated cross piece integral with said metallic strips and means for securing a ventilating screen to said corrugated member, said corrugations cooperating to stop the upward movement of said screen member.

THOMAS LLOYD 45 PAUL W. SYLVANDER. 

